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Finding the Fourth Proportional to 57,825.64, 86,884.62 and 55,492.84

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Solution

The fourth proportional to 57,825.64, 86,884.62 and 55,492.84 is: 83,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,825.64 : 86,884.62 = 55,492.84 : x
  2. Step 2: Convert to fraction form
    57,825.64/86,884.62 = 55,492.84/x
  3. Step 3: Cross multiply
    57,825.64x = 86,884.62 × 55,492.84
  4. Step 4: Simplify right side
    57,825.64x = 4,821,474,316.12
  5. Step 5: Solve for x
    x = 4,821,474,316.12/57,825.64
  6. Step 6: Final answer
    x = 83,379.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.